2013-04-24 Vladimir Makarov <vmakarov@redhat.com>

        * rtl.h (struct rtx_def): Add comment for field jump.
	(LRA_SUBREG_P): New macro.
	* recog.c (register_operand): Check LRA_SUBREG_P.
	* lra.c (lra): Add note at the end of RTL code. Align non-empty
	stack frame.
	* lra-spills.c (lra_spill): Align stack after spilling pseudos.
	(lra_final_code_change): Skip subreg change for operators.
	* lra-eliminations.c (eliminate_regs_in_insn): Make return earlier
	if there are no operand changes.
	* lra-constraints.c (curr_insn_set): New.
	(match_reload): Set LRA_SUBREG_P.
	(emit_spill_move): Ditto.
	(check_and_process_move): Use curr_insn_set. Process only single
	set insns.  Don't initialize sec_mem_p and change_p.
	(simplify_operand_subreg): Use LRA_SUBREG_P.
	(reg_in_class_p): New function.
	(process_alt_operands): Use it.  Use #if HAVE_ATTR_enabled instead
	of #ifdef.  Add code to remove cycling.
	(process_address): Check EXTRA_CONSTRAINT_STR. Process even if
	non-null disp.  Reload inner instead of disp when base and index
	are null.  Try to put lo_sum into register.
	(EBB_PROBABILITY_CUTOFF): Redefine probability in percents.
        (check_and_process_move): Move code for move cost check to
	simple_move_p.  Remove equiv_substitution.
        (simple_move_p): New function.
	(curr_insn_transform): Initialize sec_mem_p and change_p.  Set up
	curr_insn_set.  Call check_and_process_move only for single set
	insns.  Use the new function.  Move call of check_and_process_move
	after operand equiv substitution and address process.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198252 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 8 insertions, 1 deletions

diff --git a/gcc/lra-spills.c b/gcc/lra-spills.c
index 60e51eec0c5..7c0c630273d 100644
--- a/gcc/lra-spills.c
+++ b/gcc/lra-spills.c
@@ -548,6 +548,11 @@ lra_spill (void)
   for (i = 0; i < n; i++)
     if (pseudo_slots[pseudo_regnos[i]].mem == NULL_RTX)
       assign_mem_slot (pseudo_regnos[i]);
+  if (n > 0 && crtl->stack_alignment_needed)
+    /* If we have a stack frame, we must align it now.  The stack size
+       may be a part of the offset computation for register
+       elimination.  */
+    assign_stack_local (BLKmode, 0, crtl->stack_alignment_needed);
   if (lra_dump_file != NULL)
     {
       for (i = 0; i < slots_num; i++)
@@ -644,10 +649,12 @@ lra_final_code_change (void)
 	    }
 
 	  lra_insn_recog_data_t id = lra_get_insn_recog_data (insn);
+	  struct lra_static_insn_data *static_id = id->insn_static_data;
 	  bool insn_change_p = false;
 
 	  for (i = id->insn_static_data->n_operands - 1; i >= 0; i--)
-	    if (alter_subregs (id->operand_loc[i], ! DEBUG_INSN_P (insn)))
+	    if ((DEBUG_INSN_P (insn) || ! static_id->operand[i].is_operator)
+		&& alter_subregs (id->operand_loc[i], ! DEBUG_INSN_P (insn)))
 	      {
 		lra_update_dup (id, i);
 		insn_change_p = true;